/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM block
#if !defined (_TRACE_BLOCK_H) || defined (TRACE_HEADER_MULTI_READ)
#define _TRACE_BLOCK_H
#include <linux/blktrace_api.h>
#include <linux/blkdev.h>
#include <linux/buffer_head.h>
#include <linux/tracepoint.h>
#include <uapi/linux/ioprio.h>
#define RWBS_LEN 10
#define IOPRIO_CLASS_STRINGS \
{ IOPRIO_CLASS_NONE, "none" }, \
{ IOPRIO_CLASS_RT, "rt" }, \
{ IOPRIO_CLASS_BE, "be" }, \
{ IOPRIO_CLASS_IDLE, "idle" }, \
{ IOPRIO_CLASS_INVALID, "invalid" }
#ifdef CONFIG_BUFFER_HEAD
DECLARE_EVENT_CLASS(block_buffer,
TP_PROTO(struct buffer_head *bh),
TP_ARGS(bh),
TP_STRUCT__entry (
__field( dev_t, dev )
__field( sector_t, sector )
__field( size_t, size )
),
TP_fast_assign(
__entry->dev = bh->b_bdev->bd_dev;
__entry->sector = bh->b_blocknr;
__entry->size = bh->b_size;
),
TP_printk("%d,%d sector=%llu size=%zu" ,
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long long )__entry->sector, __entry->size
)
);
/**
* block_touch_buffer - mark a buffer accessed
* @ bh : buffer_head being touched
*
* Called from touch_buffer ( ) .
*/
DEFINE_EVENT(block_buffer, block_touch_buffer,
TP_PROTO(struct buffer_head *bh),
TP_ARGS(bh)
);
/**
* block_dirty_buffer - mark a buffer dirty
* @ bh : buffer_head being dirtied
*
* Called from mark_buffer_dirty ( ) .
*/
DEFINE_EVENT(block_buffer, block_dirty_buffer,
TP_PROTO(struct buffer_head *bh),
TP_ARGS(bh)
);
#endif /* CONFIG_BUFFER_HEAD */
/**
* block_rq_requeue - place block IO request back on a queue
* @ rq : block IO operation request
*
* The block operation request @ rq is being placed back into queue
* @ q . For some reason the request was not completed and needs to be
* put back in the queue .
*/
TRACE_EVENT(block_rq_requeue,
TP_PROTO(struct request *rq),
TP_ARGS(rq),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned int , nr_sector )
__field( unsigned short , ioprio )
__array( char , rwbs, RWBS_LEN )
__dynamic_array( char , cmd, 1 )
),
TP_fast_assign(
__entry->dev = rq->q->disk ? disk_devt(rq->q->disk) : 0 ;
__entry->sector = blk_rq_trace_sector(rq);
__entry->nr_sector = blk_rq_trace_nr_sectors(rq);
__entry->ioprio = req_get_ioprio(rq);
blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
__get_str(cmd)[0 ] = '\0' ;
),
TP_printk("%d,%d %s (%s) %llu + %u %s,%u,%u [%d]" ,
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->rwbs, __get_str(cmd),
(unsigned long long )__entry->sector, __entry->nr_sector,
__print_symbolic(IOPRIO_PRIO_CLASS(__entry->ioprio),
IOPRIO_CLASS_STRINGS),
IOPRIO_PRIO_HINT(__entry->ioprio),
IOPRIO_PRIO_LEVEL(__entry->ioprio), 0 )
);
DECLARE_EVENT_CLASS(block_rq_completion,
TP_PROTO(struct request *rq, blk_status_t error, unsigned int nr_bytes),
TP_ARGS(rq, error, nr_bytes),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned int , nr_sector )
__field( int , error )
__field( unsigned short , ioprio )
__array( char , rwbs, RWBS_LEN )
__dynamic_array( char , cmd, 1 )
),
TP_fast_assign(
__entry->dev = rq->q->disk ? disk_devt(rq->q->disk) : 0 ;
__entry->sector = blk_rq_pos(rq);
__entry->nr_sector = nr_bytes >> 9 ;
__entry->error = blk_status_to_errno(error);
__entry->ioprio = req_get_ioprio(rq);
blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
__get_str(cmd)[0 ] = '\0' ;
),
TP_printk("%d,%d %s (%s) %llu + %u %s,%u,%u [%d]" ,
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->rwbs, __get_str(cmd),
(unsigned long long )__entry->sector, __entry->nr_sector,
__print_symbolic(IOPRIO_PRIO_CLASS(__entry->ioprio),
IOPRIO_CLASS_STRINGS),
IOPRIO_PRIO_HINT(__entry->ioprio),
IOPRIO_PRIO_LEVEL(__entry->ioprio), __entry->error)
);
/**
* block_rq_complete - block IO operation completed by device driver
* @ rq : block operations request
* @ error : status code
* @ nr_bytes : number of completed bytes
*
* The block_rq_complete tracepoint event indicates that some portion
* of operation request has been completed by the device driver . If
* the @ rq - > bio is % NULL , then there is absolutely no additional work to
* do for the request . If @ rq - > bio is non - NULL then there is
* additional work required to complete the request .
*/
DEFINE_EVENT(block_rq_completion, block_rq_complete,
TP_PROTO(struct request *rq, blk_status_t error, unsigned int nr_bytes),
TP_ARGS(rq, error, nr_bytes)
);
/**
* block_rq_error - block IO operation error reported by device driver
* @ rq : block operations request
* @ error : status code
* @ nr_bytes : number of completed bytes
*
* The block_rq_error tracepoint event indicates that some portion
* of operation request has failed as reported by the device driver .
*/
DEFINE_EVENT(block_rq_completion, block_rq_error,
TP_PROTO(struct request *rq, blk_status_t error, unsigned int nr_bytes),
TP_ARGS(rq, error, nr_bytes)
);
DECLARE_EVENT_CLASS(block_rq,
TP_PROTO(struct request *rq),
TP_ARGS(rq),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned int , nr_sector )
__field( unsigned int , bytes )
__field( unsigned short , ioprio )
__array( char , rwbs, RWBS_LEN )
__array( char , comm, TASK_COMM_LEN )
__dynamic_array( char , cmd, 1 )
),
TP_fast_assign(
__entry->dev = rq->q->disk ? disk_devt(rq->q->disk) : 0 ;
__entry->sector = blk_rq_trace_sector(rq);
__entry->nr_sector = blk_rq_trace_nr_sectors(rq);
__entry->bytes = blk_rq_bytes(rq);
__entry->ioprio = req_get_ioprio(rq);
blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
__get_str(cmd)[0 ] = '\0' ;
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
TP_printk("%d,%d %s %u (%s) %llu + %u %s,%u,%u [%s]" ,
MAJOR(__entry->dev), MINOR(__entry->dev),
__entry->rwbs, __entry->bytes, __get_str(cmd),
(unsigned long long )__entry->sector, __entry->nr_sector,
__print_symbolic(IOPRIO_PRIO_CLASS(__entry->ioprio),
IOPRIO_CLASS_STRINGS),
IOPRIO_PRIO_HINT(__entry->ioprio),
IOPRIO_PRIO_LEVEL(__entry->ioprio), __entry->comm)
);
/**
* block_rq_insert - insert block operation request into queue
* @ rq : block IO operation request
*
* Called immediately before block operation request @ rq is inserted
* into queue @ q . The fields in the operation request @ rq struct can
* be examined to determine which device and sectors the pending
* operation would access .
*/
DEFINE_EVENT(block_rq, block_rq_insert,
TP_PROTO(struct request *rq),
TP_ARGS(rq)
);
/**
* block_rq_issue - issue pending block IO request operation to device driver
* @ rq : block IO operation request
*
* Called when block operation request @ rq from queue @ q is sent to a
* device driver for processing .
*/
DEFINE_EVENT(block_rq, block_rq_issue,
TP_PROTO(struct request *rq),
TP_ARGS(rq)
);
/**
* block_rq_merge - merge request with another one in the elevator
* @ rq : block IO operation request
*
* Called when block operation request @ rq from queue @ q is merged to another
* request queued in the elevator .
*/
DEFINE_EVENT(block_rq, block_rq_merge,
TP_PROTO(struct request *rq),
TP_ARGS(rq)
);
/**
* block_io_start - insert a request for execution
* @ rq : block IO operation request
*
* Called when block operation request @ rq is queued for execution
*/
DEFINE_EVENT(block_rq, block_io_start,
TP_PROTO(struct request *rq),
TP_ARGS(rq)
);
/**
* block_io_done - block IO operation request completed
* @ rq : block IO operation request
*
* Called when block operation request @ rq is completed
*/
DEFINE_EVENT(block_rq, block_io_done,
TP_PROTO(struct request *rq),
TP_ARGS(rq)
);
/**
* block_bio_complete - completed all work on the block operation
* @ q : queue holding the block operation
* @ bio : block operation completed
*
* This tracepoint indicates there is no further work to do on this
* block IO operation @ bio .
*/
TRACE_EVENT(block_bio_complete,
TP_PROTO(struct request_queue *q, struct bio *bio),
TP_ARGS(q, bio),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned , nr_sector )
__field( int , error )
__array( char , rwbs, RWBS_LEN)
),
TP_fast_assign(
__entry->dev = bio_dev(bio);
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
__entry->error = blk_status_to_errno(bio->bi_status);
blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
),
TP_printk("%d,%d %s %llu + %u [%d]" ,
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
(unsigned long long )__entry->sector,
__entry->nr_sector, __entry->error)
);
DECLARE_EVENT_CLASS(block_bio,
TP_PROTO(struct bio *bio),
TP_ARGS(bio),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned int , nr_sector )
__array( char , rwbs, RWBS_LEN )
__array( char , comm, TASK_COMM_LEN )
),
TP_fast_assign(
__entry->dev = bio_dev(bio);
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
TP_printk("%d,%d %s %llu + %u [%s]" ,
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
(unsigned long long )__entry->sector,
__entry->nr_sector, __entry->comm)
);
/**
* block_bio_backmerge - merging block operation to the end of an existing operation
* @ bio : new block operation to merge
*
* Merging block request @ bio to the end of an existing block request .
*/
DEFINE_EVENT(block_bio, block_bio_backmerge,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)
);
/**
* block_bio_frontmerge - merging block operation to the beginning of an existing operation
* @ bio : new block operation to merge
*
* Merging block IO operation @ bio to the beginning of an existing block request .
*/
DEFINE_EVENT(block_bio, block_bio_frontmerge,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)
);
/**
* block_bio_queue - putting new block IO operation in queue
* @ bio : new block operation
*
* About to place the block IO operation @ bio into queue @ q .
*/
DEFINE_EVENT(block_bio, block_bio_queue,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)
);
/**
* block_getrq - get a free request entry in queue for block IO operations
* @ bio : pending block IO operation ( can be % NULL )
*
* A request struct has been allocated to handle the block IO operation @ bio .
*/
DEFINE_EVENT(block_bio, block_getrq,
TP_PROTO(struct bio *bio),
TP_ARGS(bio)
);
/**
* blk_zone_append_update_request_bio - update bio sector after zone append
* @ rq : the completed request that sets the bio sector
*
* Update the bio ' s bi_sector after a zone append command has been completed .
*/
DEFINE_EVENT(block_rq, blk_zone_append_update_request_bio,
TP_PROTO(struct request *rq),
TP_ARGS(rq)
);
/**
* block_plug - keep operations requests in request queue
* @ q : request queue to plug
*
* Plug the request queue @ q . Do not allow block operation requests
* to be sent to the device driver . Instead , accumulate requests in
* the queue to improve throughput performance of the block device .
*/
TRACE_EVENT(block_plug,
TP_PROTO(struct request_queue *q),
TP_ARGS(q),
TP_STRUCT__entry(
__array( char , comm, TASK_COMM_LEN )
),
TP_fast_assign(
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
TP_printk("[%s]" , __entry->comm)
);
DECLARE_EVENT_CLASS(block_unplug,
TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit ),
TP_ARGS(q, depth, explicit ),
TP_STRUCT__entry(
__field( int , nr_rq )
__array( char , comm, TASK_COMM_LEN )
),
TP_fast_assign(
__entry->nr_rq = depth;
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
TP_printk("[%s] %d" , __entry->comm, __entry->nr_rq)
);
/**
* block_unplug - release of operations requests in request queue
* @ q : request queue to unplug
* @ depth : number of requests just added to the queue
* @ explicit : whether this was an explicit unplug , or one from schedule ( )
*
* Unplug request queue @ q because device driver is scheduled to work
* on elements in the request queue .
*/
DEFINE_EVENT(block_unplug, block_unplug,
TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit ),
TP_ARGS(q, depth, explicit )
);
/**
* block_split - split a single bio struct into two bio structs
* @ bio : block operation being split
* @ new_sector : The starting sector for the new bio
*
* The bio request @ bio needs to be split into two bio requests . The newly
* created @ bio request starts at @ new_sector . This split may be required due to
* hardware limitations such as operation crossing device boundaries in a RAID
* system .
*/
TRACE_EVENT(block_split,
TP_PROTO(struct bio *bio, unsigned int new_sector),
TP_ARGS(bio, new_sector),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( sector_t, new_sector )
__array( char , rwbs, RWBS_LEN )
__array( char , comm, TASK_COMM_LEN )
),
TP_fast_assign(
__entry->dev = bio_dev(bio);
__entry->sector = bio->bi_iter.bi_sector;
__entry->new_sector = new_sector;
blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
),
TP_printk("%d,%d %s %llu / %llu [%s]" ,
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
(unsigned long long )__entry->sector,
(unsigned long long )__entry->new_sector,
__entry->comm)
);
/**
* block_bio_remap - map request for a logical device to the raw device
* @ bio : revised operation
* @ dev : original device for the operation
* @ from : original sector for the operation
*
* An operation for a logical device has been mapped to the
* raw block device .
*/
TRACE_EVENT(block_bio_remap,
TP_PROTO(struct bio *bio, dev_t dev, sector_t from),
TP_ARGS(bio, dev, from),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned int , nr_sector )
__field( dev_t, old_dev )
__field( sector_t, old_sector )
__array( char , rwbs, RWBS_LEN)
),
TP_fast_assign(
__entry->dev = bio_dev(bio);
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sector = bio_sectors(bio);
__entry->old_dev = dev;
__entry->old_sector = from;
blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
),
TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu" ,
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
(unsigned long long )__entry->sector,
__entry->nr_sector,
MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
(unsigned long long )__entry->old_sector)
);
/**
* block_rq_remap - map request for a block operation request
* @ rq : block IO operation request
* @ dev : device for the operation
* @ from : original sector for the operation
*
* The block operation request @ rq in @ q has been remapped . The block
* operation request @ rq holds the current information and @ from hold
* the original sector .
*/
TRACE_EVENT(block_rq_remap,
TP_PROTO(struct request *rq, dev_t dev, sector_t from),
TP_ARGS(rq, dev, from),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( unsigned int , nr_sector )
__field( dev_t, old_dev )
__field( sector_t, old_sector )
__field( unsigned int , nr_bios )
__array( char , rwbs, RWBS_LEN)
),
TP_fast_assign(
__entry->dev = disk_devt(rq->q->disk);
__entry->sector = blk_rq_pos(rq);
__entry->nr_sector = blk_rq_sectors(rq);
__entry->old_dev = dev;
__entry->old_sector = from;
__entry->nr_bios = blk_rq_count_bios(rq);
blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
),
TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u" ,
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
(unsigned long long )__entry->sector,
__entry->nr_sector,
MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
(unsigned long long )__entry->old_sector, __entry->nr_bios)
);
/**
* blkdev_zone_mgmt - Execute a zone management operation on a range of zones
* @ bio : The block IO operation sent down to the device
* @ nr_sectors : The number of sectors affected by this operation
*
* Execute a zone management operation on a specified range of zones . This
* range is encoded in % nr_sectors , which has to be a multiple of the zone
* size .
*/
TRACE_EVENT(blkdev_zone_mgmt,
TP_PROTO(struct bio *bio, sector_t nr_sectors),
TP_ARGS(bio, nr_sectors),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( sector_t, sector )
__field( sector_t, nr_sectors )
__array( char , rwbs, RWBS_LEN)
),
TP_fast_assign(
__entry->dev = bio_dev(bio);
__entry->sector = bio->bi_iter.bi_sector;
__entry->nr_sectors = bio_sectors(bio);
blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
),
TP_printk("%d,%d %s %llu + %llu" ,
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
(unsigned long long )__entry->sector,
__entry->nr_sectors)
);
DECLARE_EVENT_CLASS(block_zwplug,
TP_PROTO(struct request_queue *q, unsigned int zno, sector_t sector,
unsigned int nr_sectors),
TP_ARGS(q, zno, sector, nr_sectors),
TP_STRUCT__entry(
__field( dev_t, dev )
__field( unsigned int , zno )
__field( sector_t, sector )
__field( unsigned int , nr_sectors )
),
TP_fast_assign(
__entry->dev = disk_devt(q->disk);
__entry->zno = zno;
__entry->sector = sector;
__entry->nr_sectors = nr_sectors;
),
TP_printk("%d,%d zone %u, BIO %llu + %u" ,
MAJOR(__entry->dev), MINOR(__entry->dev), __entry->zno,
(unsigned long long )__entry->sector,
__entry->nr_sectors)
);
DEFINE_EVENT(block_zwplug, disk_zone_wplug_add_bio,
TP_PROTO(struct request_queue *q, unsigned int zno, sector_t sector,
unsigned int nr_sectors),
TP_ARGS(q, zno, sector, nr_sectors)
);
DEFINE_EVENT(block_zwplug, blk_zone_wplug_bio,
TP_PROTO(struct request_queue *q, unsigned int zno, sector_t sector,
unsigned int nr_sectors),
TP_ARGS(q, zno, sector, nr_sectors)
);
#endif /* _TRACE_BLOCK_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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